No cooling
Y
Is the voltage
of the electrical outlet within
the range of AC187~253V?
No cooling
Is the cold
water selection switch on?
Y
Is the lowest
cold water temperature
indicator flashing on the
FND?
Cold water is not
selected.
N
Cold water sensor
connector is not normal.
Y
Turn on the cold water
selection switch.
Check the cold water
sensor connector.
N
When
the compressor is
turned off, is the cold water
sensor resistance value of
f the
specification?
If the measurement value
is outside the allowed
error range, the cold
water sensor is faulty
.
N
Replace the cold water
sensor.
Y
When
the compressor
is in operation, does the
terminal have a voltage of 220V
and the current range of
0.52~0.72[A]?
If the voltage and current
are normal and the
compressor is stopped, it
is an OLP
defect.
Y
Disconnect the power
cord and replace the
OLP.
N
When the
compressor is in
operating conditions, is the
compressor power supply of
AC 220V generated?
The main PCB is
abnormal.
N
Check the main
PCB and replace it if
necessary.
N
Household power supply
is faulty.
Check the household
power supply.
Compressor voltage range AC 220V±5%
(AC 187V ~ AC 253V)
Display of thermistor abnormalities
- When the thermistor contact is faulty, the lowest cold
water temperature indicator flashes.
Sensor resistance per compressor control temperature
1) Compressor stop temperature: 5°C resistance value
±2% (124.704
KΩ~129.793KΩ) automatically turned off
17 minutes after reaching the value
2) Restart temperature: 7.3°C resistance value ±2%
(1
11.73
KΩ~116.292KΩ)
Compressor operating condition
1) Hot water selection switch ON
2) Cold water temperature 7.3°C or higher
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